· Published research articles follow each of the five methodology chapters (Chs. 4-.

· Chapter on computer data analysis (Ch. 12) demonstrates how SPSS is used to calculate the statistics explained in Chapters 10 and 11. All three data analysis chapters use numerous examples to demonstrate statistics.

· Appendix B contains a data set that students can use in the chapters on data analysis(Chs.10-12).

· An emphasis on validity (Ch. 9) as a unitary trait that is consistent with professional (AERA) standards. This newer perspective views validity in a way that many books have not yet incorporated.